Constructing a Food Web You need to choose one of the following tasks to complete. For each, you need to draw a food web based on the information given and create it in the program ‘Imagination’. When it is finished, you need to take a screen shot of your food web, save it as an image and place it on your wiki page (follow instructions on the 'Images and Information' page).
Approaching the standard:
Producers:
Consumers:
Decomposers:
Eucalyptus Tree
Magpie – caterpillars Wasps – caterpillars Caterpillars – eucalyptus leaves Koala – eucalyptus leaves Aphids – eucalyptus leaves Stick insects – eucalyptus leaves Possums – fruits and flowers of the eucalypt Honeyeater – fruits and flowers of the eucalypt Wasps and bees – fruits and flowers of the eucalypt Flying fox – fruits and flowers of the eucalypt Kookaburra – moths, stick insects Wagtail – worms, aphids Cat – wagtail
Worms – dried leaves from eucalypt Insect larvae – dried leaves from eucalypt Bacteria – all dead matter Fungi – all dead matter
At the standard: Draw a food web of the following ecosystem and its feeding relationships:
The Torrens River starts in the Adelaide hills as several small creeks which join to form one larger creek. As it winds its way down the hills to the city, more and more water is added. It generally only flows in winter, when the rainfall is sufficient, and dries up into small waterholes during the summer. A weir is used to hold water permanently in the city. It is surprising how many organisms rely on the river for their existence.
Algae can be observed growing in the water, as well as water ribbons (Triglochin procerum). On the water’s edge, fluffy topped reeds such as the common reed (Phragmites australis) and the bulrush (Typhus sp) grow. Water boatmen areobserved swimming in the water. They are eating the algae and reeds. Mosquitolarvae also eat the algae while the freshwater snail eats both the algae and waterribbons. A long necked tortoise pokes its nostrils above the water. The tortoise eatsthe algae too, as well as feeding on snails, boatman and yabbies. The waterboatman provides food for many species including fish, frogs, diving beetles anddragonfly larvae. The yabbies are scavengers, feeding on rotting plant and animalmatter, while bacteria also help break down this dead material by digesting it andrecycling nutrients in the food web. The mosquito larvae are considered a delicacyfor several varieties of fish (such as the big-headed gudgeon or the congolli).
Birds are in abundance along the waterway. Pacific black ducks are feeding on fish, dragonfly larvae and diving beetles, while the occasional visiting pelican feeds on fish, frogs and dragonfly larvae. Black swans make a beautiful sight, bending their elegant necks to forage under the water grazing on the water ribbons, snails and an occasional fish. The white-faced heron makes a meal of the fish and frogs. The purple swamp hen runs quickly from the bulrushes where it feeds on the tender growth of the bulrushes and also makes its nest. On the bank a blue-tongue lizard is sunning itself in a warm rock. It snaps at the dragonflies and diving beetle and beware the unwary frog, the lizard will sometimes eat them too.
Above the standard: Research the ecosystem of the animal that you investigated at the zoo, the foods it eats and what eats it. Draw your own food web describing the feeding relationships that exist in the ecosystem that your animal lives in in the wild.
Constructing a Food Web
You need to choose one of the following tasks to complete. For each, you need to draw a food web based on the information given and create it in the program ‘Imagination’.
When it is finished, you need to take a screen shot of your food web, save it as an image and place it on your wiki page (follow instructions on the 'Images and Information' page).
Approaching the standard:
Wasps – caterpillars
Caterpillars – eucalyptus leaves
Koala – eucalyptus leaves
Aphids – eucalyptus leaves
Stick insects – eucalyptus leaves
Possums – fruits and flowers of the eucalypt
Honeyeater – fruits and flowers of the eucalypt
Wasps and bees – fruits and flowers of the eucalypt
Flying fox – fruits and flowers of the eucalypt
Kookaburra – moths, stick insects
Wagtail – worms, aphids
Cat – wagtail
Insect larvae – dried leaves from eucalypt
Bacteria – all dead matter
Fungi – all dead matter
At the standard:
Draw a food web of the following ecosystem and its feeding relationships:
The Torrens River starts in the Adelaide hills as several small creeks which join to form one larger creek. As it winds its way down the hills to the city, more and more water is added. It generally only flows in winter, when the rainfall is sufficient, and dries up into small waterholes during the summer. A weir is used to hold water permanently in the city. It is surprising how many organisms rely on the river for their existence.
Algae can be observed growing in the water, as well as water ribbons (Triglochin procerum). On the water’s edge, fluffy topped reeds such as the common reed (Phragmites australis) and the bulrush (Typhus sp) grow. Water boatmen areobserved swimming in the water. They are eating the algae and reeds. Mosquitolarvae also eat the algae while the freshwater snail eats both the algae and waterribbons. A long necked tortoise pokes its nostrils above the water. The tortoise eatsthe algae too, as well as feeding on snails, boatman and yabbies. The waterboatman provides food for many species including fish, frogs, diving beetles anddragonfly larvae. The yabbies are scavengers, feeding on rotting plant and animalmatter, while bacteria also help break down this dead material by digesting it andrecycling nutrients in the food web. The mosquito larvae are considered a delicacyfor several varieties of fish (such as the big-headed gudgeon or the congolli).
Birds are in abundance along the waterway. Pacific black ducks are feeding on fish, dragonfly larvae and diving beetles, while the occasional visiting pelican feeds on fish, frogs and dragonfly larvae. Black swans make a beautiful sight, bending their elegant necks to forage under the water grazing on the water ribbons, snails and an occasional fish. The white-faced heron makes a meal of the fish and frogs. The purple swamp hen runs quickly from the bulrushes where it feeds on the tender growth of the bulrushes and also makes its nest. On the bank a blue-tongue lizard is sunning itself in a warm rock. It snaps at the dragonflies and diving beetle and beware the unwary frog, the lizard will sometimes eat them too.
Above the standard:
Research the ecosystem of the animal that you investigated at the zoo, the foods it eats and what eats it. Draw your own food web describing the feeding relationships that exist in the ecosystem that your animal lives in in the wild.